Plant tray dome



FIG. 1 is a top, front, right side perspective view of a plant tray dome;

FIG. 2 is a right side elevation view thereof, the left side elevation view being a mirror image thereof;

FIG. 3 is a front elevation view thereof; and,

FIG. 4 is a top plan view thereof.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a plant tray dome, as shown and described. 